I believe that the correct option is: D) colons.
Extended quotations that are longer than three lines are introduced with a colon and then they start on a new line but having its entirety indented half an inch from the left margin.
For example:
Mary begins to talk about her past:
(this is where the quotation is)
Answer:
badly burnt
very small pieces
fell suddenly downwards
turning and twisting
hung
knocking together(teeth)
things people do
lift quickly
making a loud cry(in pain)
C. Necessary is the answer